Anyone try using the thermo-control that's built into some electric fan shrouds?

Went out to my local pick-n-pull and grabbed an electric fan.

The one I got came out of a '96 Mercury Mystique. I noticed that it has what appears to be a thermostatic coil built into the shroud on the lower driverside corner.

Has anybody tried wiring one of these up to control the fan? I'm not certain if it needs a control unit thing or not. Still need to google it but thought I'd hop on FABO and see if anyone else has messed with one.